IEE754 float flaws, more testing, fixups, string_view usage

type sanitation got merged into llvm

.clang-format

@@ -52,3 +52,4 @@ RequiresClausePosition: WithFollowing
 RequiresExpressionIndentation: OuterScope
 SpaceAfterTemplateKeyword: false
 TabWidth: 2
+UseTab: Never

.clangd

@@ -12,12 +12,12 @@ CompileFlags:
   # Add: [-std=c++14]
   # Add: [-std=c++17]
   # Add: [-std=c++20]
-  Add: [-std=c++23]
+  # Add: [-std=c++23]
   # Add: [-std=c++26]
   # Add: [-std=c++29]
 
   # Add: [-std=c89]
-  # Add: [-std=c99]
+  Add: [-std=c99]
   # Add: [-std=c11]
   # Add: [-std=c17]
   # Add: [-std=c23]

.config/nvim/lua/my_lsp.lua

@@ -2,6 +2,8 @@
 -- luacheck: globals vim
 -- luacheck: no max line length
 
+-- TODO simplify config based on 3f1d09bc94d02266d6fa588a2ccd1be1ca084cf7
+
 -- lsp protocol
 -- 1. file opened in editor -> editor supposed to inform server about changes to
 -- document. Builtin neovim client do that. How exactly file stored on disk
@@ -22,6 +24,10 @@ local aucmd_lsp = vim.api.nvim_create_augroup('aucmds_lsp', { clear = true })
 
 -- pip(x) install --upgrade ruff
 -- npm install --save-dev --save-exact @biomejs/biome
+-- git clone https://github.com/biomejs/biome
+-- cargo install just
+-- just install-tools
+-- BIOME_VERSION=0.0.1 cargo build --bin biome --release
 
 -- Manual (nvim-lsp name -- mason name):
 -- 'bashls', -- 'bash-language-server'
@@ -103,7 +109,8 @@ end
 -- traverses parent dir up to find yaml file .clangd
 -- CompileFlags:
 --   Add: [-std=c++20]
---lspconfig.biome.setup { capabilities = common_capabilities, on_attach = common_on_attach, }
+
+lspconfig.biome.setup { capabilities = common_capabilities, on_attach = common_on_attach, }
 lspconfig.clangd.setup { capabilities = common_capabilities, on_attach = common_on_attach, }
 --lspconfig.gopls.setup { capabilities = common_capabilities, on_attach = common_on_attach, }
 -- lspconfig.jedi_language_server.setup { capabilities = common_capabilities, on_attach = common_on_attach, }

.config/nvim/lua/my_plugins.lua

@@ -126,7 +126,7 @@ return {
   -- (((( explicit move: van)in)al)il)
   -- cina/cila to modify fn args
   -- example: 2cina to modify 'bb' in 'f(aa, bb)'
-  -- idea: get to prev selection not possible?
+  -- or leftwards: 2cila
   { 'echasnovski/mini.ai', config = function() require('mini.ai').setup {} end },
 
   -- sa + motion/textobject + output id (to add), ie ( saiw) word -> (((word)))
@@ -241,6 +241,7 @@ return {
   -- leap: enter repeats, tab reverses the motion
   -- (unused default breaks mini.surround) s|S char1 char2 <space>? (<space>|<tab>)* label?
   -- -|_ char1 char2 <space>? (<space>|<tab>)* label?
+  -- TODO figure out better keymap
   { 'ggandor/leap.nvim' }, -- repeat action not yet supported
 
   -- Remote editing

.gnupg/gpg-agent.conf

@@ -20,6 +20,8 @@ max-cache-ttl-ssh 7200
 # pinentry-curses breaks like pinentry-tty within tmux/zellij
 # Must use separate shell, ideally with tiling WM support, to fix this.
 pinentry-program /usr/bin/pinentry-tty
+# needed for neogit, should be default
+# allow-loopback-pinentry
 # nixos used /run/current-system/sw/bin/, but NixOS >=23.05 handles pinentry
 # internally via systemd
 #pinentry-program /run/current-system/sw/bin/pinentry-tty

.gnupg/gpg.conf

@@ -25,7 +25,7 @@ no-comments
 no-emit-version
 # Disable banner
 no-greeting
-# Long hexidecimal key format
+# Long hexadecimal key format
 keyid-format 0xlong
 # Display UID validity
 list-options show-uid-validity
@@ -42,6 +42,8 @@ no-symkey-cache
 use-agent
 # Disable recipient key ID in messages
 throw-keyids
+# loopback mode is the default
+# pinentry-mode loopback
 # Default/trusted key ID to use (helpful with throw-keyids)
 #default-key 0xFF3E7D88647EBCDB
 #trusted-key 0xFF3E7D88647EBCDB

example/cpp20_setup/CMakeLists.txt

@@ -0,0 +1,31 @@
+cmake_minimum_required(VERSION 2.6)
+project(test)
+
+# TODO distinguish profile clang|gcc|msvc dev|release
+# TODO test if -g is implicit or what ReleaseDebug and Debug imply
+
+add_executable(dev_gcc.exe)
+target_sources(dev_gcc.exe PRIVATE use_gcc.cpp)
+# more lightweight is -D_GLIBCXX_ASSERTIONS -DDEBUG
+target_compile_options(dev_gcc.exe PRIVATE -std=c++20 -D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC -Wall -Wformat -Wformat=2 -Wconversion -Wimplicit-fallthrough -Werror -Wextra -Wpedantic -Wtrampolines -Wshadow -Wold-style-cast -Woverloaded-virtual -Wstrict-aliasing)
+
+add_executable(rel_gcc.exe)
+target_sources(rel_gcc.exe PRIVATE use_gcc.cpp)
+target_compile_options(rel_gcc.exe PRIVATE -std=c++20 -Wall -Wformat -Wformat=2 -Wconversion -Wimplicit-fallthrough -Werror -Wextra -Wpedantic -Wtrampolines -Wshadow -Wold-style-cast -Woverloaded-virtual -Wstrict-aliasing)
+
+add_executable(dev_clang.exe)
+target_sources(dev_clang.exe PRIVATE use_gcc.cpp)
+target_compile_options(dev_clang.exe PRIVATE -std=c++20 -D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC -Werror -Weverything -Wno-c++98-compat-pedantic -Wno-c++20-compat -Wno-unsafe-buffer-usage -Wno-switch-default)
+
+add_executable(rel_clang.exe)
+target_sources(rel_clang.exe PRIVATE use_gcc.cpp)
+target_compile_options(rel_clang.exe PRIVATE -std=c++20 for production code 	-fno-delete-null-pointer-checks -fno-strict-overflow -fno-strict-aliasing -ftrivial-auto-var-init=zero -Werror -Weverything -Wno-c++98-compat-pedantic -Wno-c++20-compat -Wno-unsafe-buffer-usage -Wno-switch-default)
+
+# warning level
+# cl /W4 /wd4146 /wd4245 /D_CRT_SECURE_NO_WARNINGS /Z7
+# cl /Z7 /W4 /wd4146 /wd4245 /RTCcsu
+
+# cmake -B build src/ -DCMAKE_BUILD_TYPE=Debug -GNinja && time cmake --build build
+# watchexec -e hpp,cpp 'time cmake --build build && ./build/use_adjust.exe'
+# cmake -B buildrel src/ -DCMAKE_BUILD_TYPE=ReleaseDebug -GNinja && time cmake --build buildrel
+# watchexec -e hpp,cpp 'time cmake --build buildrel && ./buildrel/use_adjust.exe'

example/cpp20_setup/use_clang.cpp

@@ -0,0 +1 @@
+int main() { return 0; }

example/cpp20_setup/use_gcc.cpp

@@ -0,0 +1 @@
+int main() { return 0; }

example/portable_printf.c

@@ -1,6 +1,6 @@
 //! Tested with
-//! zig cc -std=c99 -Werror -Weverything -Wno-unsafe-buffer-usage -Wno-declaration-after-statement -Wno-switch-default ./templates/common.c
-//! zig cc -std=c23 -Werror -Weverything -Wno-unsafe-buffer-usage -Wno-declaration-after-statement -Wno-switch-default -Wno-c++98-compat -Wno-pre-c11-compat -Wno-pre-c23-compat ./templates/common.c
+//! zig cc -std=c99 -Werror -Weverything -Wno-unsafe-buffer-usage -Wno-declaration-after-statement -Wno-switch-default ./example/portable_printf.c -o portable_printf99.exe && ./portable_printf99.exe
+//! zig cc -std=c23 -Werror -Weverything -Wno-unsafe-buffer-usage -Wno-declaration-after-statement -Wno-switch-default -Wno-c++98-compat -Wno-pre-c11-compat -Wno-pre-c23-compat ./example/portable_printf.c -o portable_printf23.exe && ./portable_printf23.exe
 #include <inttypes.h> // PRIu64
 #include <stddef.h>   // ptrdiff_t
 #include <stdio.h>    // printf
@@ -9,6 +9,9 @@
 // intmax_t and uintmax_t
 
 // For embedded C, use https://github.com/mpaland/printf or https://github.com/eyalroz/printf
+// For C99 there is no type safe printing possible without extensions. Use compiler options and clangd.
+// For C11 use idea adjust https://github.com/nickelca/generic-print
+// For C23 use https://github.com/nickelca/generic-print
 
 int main(void) {
   // https://en.cppreference.com/w/cpp/types/integer